NPPES file of Aug 9, 2026

Stephen Trent Baker, M.D.

Internal Medicine Physician · Wauwatosa, WI

Stephen Trent Baker, M.D. is an internal medicine physician with a practice address in Wauwatosa, Wisconsin, and NPI 1518931013, issued on Feb 14, 2006. Check the license (Wisconsin 26911, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1518931013
Name
Stephen Trent Baker
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
26911 WI
Self-reported in NPPES; status is on the state search
Practice location
10950 W Capitol Dr, Wauwatosa, WI 53222
Phone
(414) 464-4460
Enumerated
Feb 14, 2006
Record last updated
Jun 4, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(414) 464-7074
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →

Also registered at 10950 W Capitol Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jane Hawes, MDInternal Medicine Physician1922049162
  2. Mark Horneffer, MDInternal Medicine Physician1710928965
  3. Daniel Mui, MDInternal Medicine Physician1154363364
  4. Patricia Noonan, CNSClinical Nurse Specialist1487731782
  5. Tina Olander, M.D.Internal Medicine Physician1427164995
  6. Katherine Rowland, APNPNurse Practitioner1124290952

Verify Stephen Trent Baker in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 26911    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Stephen Trent Baker among 2,078 internal medicine physician records in Wisconsin

Stephen Trent Baker, M.D. is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 9% of them.

  • NPI issued2006 · 9% of these records are older, 46% newer
  • In a Medicare fileNo · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 53% of these records are
  • Record last updated2012 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

45 internal medicine physician records list a practice address in Wauwatosa

They are 45 of the 1,787 NPPES records with a practice address in Wauwatosa, and 2,078 internal medicine physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 2,078 in Wisconsin → Every provider in Wauwatosa → Internal Medicine Physician nationwide →

The 8 internal medicine physician records with the nearest ZIP codes

  1. Kalpana Ajjampore, MDWauwatosa, WI 532221518903665
  2. U Blaschke, MDWauwatosa, WI 532221437111762
  3. Sharon Doss, MDMilwaukee, WI 532221215966510
  4. Mohammad Fareed, MDWauwatosa, WI 532221841229044
  5. Alok Goyal, M.D.Milwaukee, WI 532221487634036
  6. Sunitha Gundamraj, M.D.Wauwatosa, WI 532221245269398
  7. Jane Hawes, MDWauwatosa, WI 532221922049162
  8. Mark Horneffer, MDWauwatosa, WI 532221710928965

Common questions

What is Stephen Trent Baker, M.D.'s NPI number?

Stephen Trent Baker, M.D.'s National Provider Identifier (NPI) is 1518931013, issued on Feb 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Stephen Trent Baker, M.D. located?

The NPPES record lists a practice address at 10950 W Capitol Dr, Wauwatosa, WI, 53222. Phone: (414) 464-4460. Providers update this record themselves, so call before visiting.

How can I verify Stephen Trent Baker, M.D.'s license?

NPPES lists Wisconsin license number 26911, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.